Other good references are Strayer's
text and Silverman's text.
A good (but challenging) text is
Niven, Zuckerman, Montgomery.

Aut2006: MAT4930 5662 Number Theory2 (Special Topics) MWF2 LIT239

Number Theory & Cryptography

Welcome!
This is a continuation of my
Number Theory 1 of
Spring2006;
it should be accessible to anyone with an introductory course or who has
read the first few chapters of a beginning text
(E.g.
Elementary Number Theory by James Strayer;
or
A Friendly Introduction Number Theory by Joseph Silverman;
or
Elementary Number Theory by David Burton;
or
Fundamentals of Number Theory by William Leveque;
or the text by Vanden Eynden).

Our textbook is
A Computational Introduction to Number Theory and Algebra.